The latter part of your statement seems plausible if a steel bar were to be available (unlikely, though). The former makes no sense, though. Didn't you read where this was? It's New York City. Your chances of having a gun are almost nil.
I did read where it was...and have visited there myself several times. The last time I drove in there I did not see and was not stopped at any check point that searched my car or my person.
IMHO, despite their “ordinances,” a person would be crazy not to go in there capable of protecting themselves.
Normally, I would never reveal what I had with me unless I absolutely needed it. Seeing a little boy being mauled by a pit bull would qualify as such an occasion.